Acoustic Modeling Research of Chinese-English Bilingual Isolated Word Recognition System
Jia Liu · Audio Engineering · 2009
The Chinese-English bilingual acoustic modeling methods are focused on.In order to improve the system performance and decrease the model complexity,a novel clustering algorithm based on STA (State-Time Alignment) and acoustic knowledge is proporsed.Contrast experiments show that,when the complexity of the model parameters is at the same level,the proposed phone model clustering approach outperforms the simple combination of language-dependent inventories.Furthermore,STA is also better than the methods based on Bhattacharyya distance and acoustic likelihood distance.